Rod-rolling mill.



PATENTBD MAY 15, 1906.

F. E. DANIELS. EOD ROLLING MILL.

211.1011101 FILED AUG. 1, 1902.

2 BHEETS-SHBBT 2 w51@ W w Y x5 into were, the it iS o e0 i 'newerI wheh ishefe shown es i 'ei two erg-mes eoeeeeted u te e Yleef@ en he generate: wir" .Y Y t'ngh t generator may Y Bsse iasYV illustrated ie the essere'- LTED s'rATES P'Aieer OFFICE' VFeen e; DAMELS, 0F weeeegeexesseeHUseTTe magre Yand use Ele mfeatien te a wenn i mi; e fer ng neeten te be iee that; pertieeer "ed ef is herein shows ier p1 1 e; i egesle- 151011 only, es he inventxen is equex? egaekieae tee mike for rolng rods for oter perf ze ee wel' es eH sorta ef eoeget-ed met-el ses?. Y y invention centen; tee the nehingerulls or other rek mib by elece meters in the meneer? hefenafeer de- 175 seribee :me ei allee e particulier. am'angement i the meters to ami drvngte' e .g-r

The t e irtexmediate reducingr geene eo be riefen by e Fig n'e'feat ef ee V777 QJFg; Y un n @inet Y Y his ferm eereaee delivers,

' s mi@ eteeeee m.; 1e, ieee,

' 'e new.

ere iee te' e series of rougheg-ree e ef which there may be any desired number. Etam the reughingiree the billets, 110W arte'jf formed mt@ rod, ess en te e set o intermedete reduengfr Le y ef Wheh there may also be :my number. The roughing and intermediate regs efe e Yeared up te ee sheft e. The relie ef eeelgi progreseivey-nereeseg e Y s hy ge rf leiter or bevel gears of' e prper sima and piteh, as represente et e end d in F' 1, emi the speed ef ehe est of the interim ete 'ghng-'le' 'ieYV eegereblfy greater than that of the first ef the Peuekgerells. From the intermediate feeig-es the rods pass in the elgdinery mener te the finishing-rolls fi. YV(Sewm s here shown, these ros are ef the'ebe Belgian type; but they ma be snge Begin, or what is knpwn es if QB? eei'ueusff er they may he of the Garrett er er? ee ype, if preferred. Detted leed inese end 5 show the course of the hese rols, und the cleles 1c Z deneie tee ferie ente which the nished PIQEE i@ eee.

eiege ein te Fig. 1, a! e denote e geit ef n es return-cranks te the e-eheftg; hleh; es before sta-ted, iepefergeile rem the ranghi: te me terme# A i' zene biglie-pressure cyillde l Y r i f5 eyindere Beifefee e engmthe shaft e 'isprovie with an ordinary Eme een by the same eeween 'he eegee, The 'me-shat is met extended beyond the intermediate reducegels; bei the ehngros are driven by eet ere Y' e5 ere directly connected by Y rangement, four pairs on each side of the rod a: coming from the intermediate reducingrolls, and sixteen motors are therefore employed to drive them. The generator is represented in .this gure as in immediate proximity to the rolls. This is only done for clearness of illustration, for, as represented in Fig. 1, it is located between the engines a' a', and, as a matter of fact, it may be located at any more remote point.

All the motors are wired direct from a single generator, as indicated in the fourth figure, and should be driven to give the proper speed to take care of the elongation in the rod. They should also be provided with the usual switches and controlling devices for throwing the rolls into and out of operation, as desired, so that any pair or pairs may be discontinued should occasion require.

The mill herein shown is planned for rolling only one rod at a timebut it will be understood that there may e any number of furnaces and any number of alrs of rolls in either the roughing, intermet iate, or finishin set, and that an number of rods may be ro ed simultaneous y.

The generator is essentially of the alternating type, and is here shown as a three- )hase generator connected up in arallel wit the several individual motors w ich are properly wired to revolve in the direction of the arrows in Fig. 4, so as to give the rolls the proper direction.

The motors illustrated are of the synchronous type; but the invention contemilates the driving of the rolls by any sort of e ectric motors that would give a constant speed to the rolls under the conditions existing in a rollin -mill.

In ig. 3, what is known as a "three-hi h Garrett arrangement of the finishin -rol s is showri. In this ii re, a denotes t e rolls, and b" the roll-housings. The s indles of the top-.rolls are connected up in ine, and the ro s are journaled directly in their housings,

` as shownanddriven without the employment of the pinion-housings heretofore considered necessary. The spindles of thelower and intermediate rolls are connected up, and the rolls are mounted in their housings in precisely the same way. y i

At each end of the train of rolls there is an electric motor m m', and both these motors are wired to the single generator h, as already described. The motor m isconstructed with two armatures m m, corresponding to the s 'ndles ofthe top and bottom rolls to which t ey'are directly connected or of which they form an extension through the motor. The motor 'm' at the opposite end of thc train of rolls has a single armature m and which is connected to the line of spindles of the intermediate ro'lls in the Way just described in connection with the other motor. The wiring of the motors is such as to give rotation in theidirection indicated by the aiiriows". Both motors should have the same number of revolutions per minute, and the motor m should have double the horse-power of the motor mg.

for the obvious reason that the intermediate line of rolls which are driven by it do double duty in connection With alternate'passes of the train? The construction and operation being as thus described, it will be understood that as here planned the entire mill is driven -from one unit, and that any fluctuation infs'peed will affect each stage correspondingly. The arrangement dispenses Withall pinionsfgears, belts, and shaftmg beyond the intermediate rolls and insures a nolseless running of the finishing part of the mill and ives the whole a continuous and uniformloa It `will also be understood that it is possible to vary the speed, and consequently the capacity of the whole plant, by sim ly adjustilg the speed of the umt, and the re ative spe between the several parts of the mil will always remain constant. f

The generator might be driven by a separate engine orby Water or other power, if desired, and in some cases the roughing-rolls need not be driven from the same unit as the others; but on account of the loo between the reducing and the finishing rol s I prefer in any event to have the generator driven `by the same engine that drives the intermediate rolls.` It is not essential that the roughitlg and intermediate rolls be driven frein olie line of shafting` by bevelgearing. They may, if preferre ,be driven by belts, ropes, or spur-gearing. f g

The invention is not intended to be limited to the application of s chronous electric motors' to t e finishing-ro s only, as obviously any of the rolls in a null may be driven in this liaving thus described my invention, what I claim is- 1. In a. rod-rolling mill, the combination o f a plurality of coperat' rolls, an electric generator, and motors ap ied directly to the spindles upon which sai rolls are mounted, said `motors being operatively connected to said enerator.

2. n a rod-rolling miil, the combination of a. plurality of cooperating rolls, an alternating-electric-current generator, and anelectric motor conne ted thereto and corresponding `a proximately to the speed of said generator,

t e armature of said motor being an extension of the spindle of one of said/rolls.

3. In a rod-rolling mill, the combination of a plurality of co eratin rolls with an electric motor applie direct y to the spindle of `each of said rolls and a common source of electric power connected to all of said motors.

4. In a rod-rolling mill, the combination of reducing-rolls, an engine for driving said rolls, finishing-rolls, an electric generator,

rio

I2C I ISO ' mi a inotnr operand by said gcncmtur fiar driving the finishing-rolls, Said genci'ator he.-

1n re ucmgrniis,

5. In a. rndfrciiing niiii, the combinat inn of roughing-roiis, an intermediate reducingrolls, with n iiie-Siiaft to which both sets of operated by the engine that drives the spindles ci s i i l nil, the combinaticn ci n set cr tnin ci three-high rolls, `with electric motors.; inente at n posit@ ends nf the rols, the rails. in tiicjtp an bottom sets having their spines in line Ywith one another, and the np and bottom sets being cniected to and driven directly ily the moroils aic geegi, Va wir of engines connected tnx it onerrend of the rolls, and the spindles cf to drin@ said Qlfiat a Set of nishin Tolls, an electric generator driven by the hincha-ft, and a. mctcr Qpcmter by said generator for driving the inishing-rcis.

6. in a rmi-railing: millj a set or train o three-high rois, with eiectiic mntns incated at o positie ends of the roliS, the

Y driven by onev motot, and ih@ intermediate rolls being driven tcp anti bcttmn ro is being by the otwr motor.

i i i i s l.

thc interniiitte set being conncctc tn and diniirectiy by the motor at the otiizr cmi ai the Tii's.

In tstiincny whereof I aiix my signature the combination of in c? tw@ witnesses FRED H. DAELS.

Wiking-ges H. M. LTHAM, gains W. SMHH. 

